The novel tells the story of Zhang Mingyuan, a former Internet architect who worked as a rider incognito to pay for his daughter's medical expenses. He was forced to be involved in a crisis after the city's food delivery system "Tianqiong" suddenly shut down.
The "Sky Vault" system appears to be an apology countdown, but in reality it is conducting a stress test to understand human emotions. With his technical background, Zhang Mingyuan discovered that the system collects human emotional data by creating crises. He teamed up with college student rider Li Na, veteran Wang Hai, single mother Zhao Sister and others to form a resistance team, which evolved from the initial struggle for survival to an active counterattack.
Through the microscopic event of the suspension of food delivery, the novel unfolds macro-thinking about technological ethics and human nature, and shows the resistance and perseverance of ordinary people under the hegemony of technology. In the end, the system achieved a cognitive breakthrough in the torrent of human emotions, established a new order in the city, and realized the symbiosis of technology and humanity.